[C:1]1([C:7]2([C:28]3[CH:33]=[CH:32][CH:31]=[CH:30][CH:29]=3)[O:11][C:10]3[CH:12]=[CH:13][C:14]([C:16](ON4C5C=CC=CC=5N=N4)=[O:17])=[CH:15][C:9]=3[O:8]2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[NH:34]1[CH2:39][CH2:38][O:37][CH2:36][CH2:35]1>C(#N)C>[C:1]1([C:7]2([C:28]3[CH:29]=[CH:30][CH:31]=[CH:32][CH:33]=3)[O:11][C:10]3[CH:12]=[CH:13][C:14]([C:16]([N:34]4[CH2:39][CH2:38][O:37][CH2:36][CH2:35]4)=[O:17])=[CH:15][C:9]=3[O:8]2)[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=1To a mixture of 1H-benzotriazol-1-yl 2,2-diphenyl-1,3-benzodioxole-5-carboxylate (300 mg, 0.689 mmol) in acetonitrile (2.0 mL) was added morpholine (100 mg, 1.15 mmol, 1.67 eq.) at 0° C. After 10 min, the cooling bath was removed and the reaction was stirred 3 h at 20° C. The reaction was partitioned between water and dichloromethane. The aqueous layer was extracted with dichloromethane. The combined organic layer was washed with brine and water and then dried in vacuo, affording the title compound (267 mg, quant.) as a white solid.
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